Institution: | Department of Chemistry, Kenyatta University, P.O. Box 43844-00100, Nairobi, Kenya ; Department Chemistry, Universität Paderborn, Warburger Straβe 100, 33098 Paderborn, Germany ; Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Nizwa 616, Sultanate of Oman ; Department of Chemistry, University of the Western Cape, P/Bag X17, Bellville 7530, South Africa |